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Mid Century, Platinum, Cornflower Blue Sapphire and Diamond Cluster Ring


This product is no longer available to purchase.

Product SKU: ARB-315

Sapphire and diamond ring, circa 1950. The 4.3 carat sapphire at the centre of this ring is faceted has an unusual mixed cut, which shows off its splendid shade of blue. Lovers of sapphires will immediately recognise this as the perfect example of the classic ‘Cornflower’ blue – a dreamy mid-blue with a hint of violet, most strongly associated with Sri Lankan stones. Sri Lanka is the most historic source of sapphires, but the vast majority of its stones are heat treated to improve their colour. This stone is remarkable not only for its beautiful colour, but for its total lack of treatment – a rare combination. Set within a border of brilliant-cut diamonds, this sapphire and diamond ring is a beautiful and extremely high quality example of a classic cluster ring – an enduringly popular design for engagement rings, as favoured by Princess Diana, and more recently, Kate Middleton, Duchess of Cambridge.



Place Of Origin

United Kingdom (Purchased in France)

Stone Type

Sapphire: Approx. 4.3 carats total
Accompanied by GCS report no 80264-56, stating that the sapphire is of Sri Lankan origin, with no indications of heat treatment.

Diamonds: Approx. 1.50 carats total

Stone Dimensions

Central sapphire: 9.1mm x 8.0mm x 6.4mm
Height of setting: 8.5mm
Width of setting at front: 15.5mm x 14.5mm

Metal Type


Date Of Manufacture


Period Of Manufacture

Mid Century


Very good

Signs Of Wear

Very minor wear commensurate with age

Band Size

UK K ½ / US 5.5 (complimentary re-size available)


6.57 grams (gross)